katzenstein



Patented Sept. 27, I898.

e. KATZE NSTEIN. DECANTING APPARATUS FOR FILTERS;

(Application filed. Nov. 15, 1897.)

3 Sheets-Sheet I.

(No Model.)

'TNE NORRIS PEYEHS c0. Puo'roumo, WASHINGTON nscv No. 6ll,489. I Patented Sept. 27, I898.

G. KATZENSTEIN.

DECANTING APPARATUS FOR FILTERS.

(Application fil ed Nov. 15, 1897.)

3 Sheets-Sheet 2.

(No Model.)

THE NORRIS PETERS coy. PNOTO-LITHQ. WASHINGTON, D. c.

Nu. 6ll,489. Patented Sept.'27, I898.

' G. KATZENSTEIN.

DECANTING APPARATUS FOR FILTERS,

(Application filed Nov. 15, 1897.) (No Model.)

3 Sheets-Sheet a.

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GUSTAV KATZENSTEIN,

AENT r on.

OF BERLIN, GERMANY.

DECANTING APPARATUS FOR FILTERS- SPECIFICATION forming part of Letters Patent No. 611,489, dated September 27, 1898.

Application filed November 15,1897. Serial No. 658,600. .(No model.) Patented in Germany May 25, 1897, No. 91,800-

To aZZ whom it may concern:

Be it known that I, GUsrAv KATZENSTEIN, a subject of the Emperor of Germany, and a resident of Berlin, in the Kingdom of Prussia and Empire of Germany, have invented cer tain new and useful Improvements inDecanting Apparatus for Filters, (for which I have obtained Letters Patent in Germany, No. 91,800, dated May 25, 1897,) of which the following is a specification.

My invention relates more especially to an apparatus for decanting liquors or otherfiuids after a first filtration, though it may be used for any purpose for which it is found desirable. In the apparatus heretofore employed for this purpose it was found that after the device had been stopped for any length of time or period and then started again the impurities filtered from the liquid would become loosened from the filter and again mix with the liquor, thereby rendering it unfit for sale as a pure liquor and necessitating a second filtering or a loss of the liquor by reason of its being thrown away.

The object of my invention is to overcome this objection and to accomplish it by the interposition of the apparatus constructed in accordance with my invention, which consists, essentially, of an airdrum provided with an inlet for the filtered liquor and one or more outlets therefor and an adjustable filter located within the air-drum, which is adapted to be brought into use to further filter the liquor after the decanting apparatus has been stopped for any length of time.

My invention also consists of certain details of construction, that will be hereinafter particularly described, and specifically pointed out in the claims at the end of the'description.

In order that my invention may be fully understood, I will proceed to describe the same, with reference to the accompanying drawings, in which Figure 1 is an elevation of my improved decanting apparatus. Fig. 2 is a top view thereof. Fig. 3 is an elevation at right angles to that shown in Fig. 1, illustrating a modified form of base. Fig. 4 is an elevation of a modification, showing the body of the appa-' ratus. Fig. 5 is an axial section of that shown in Fig. 4, the filter-cylinder being lowered.

' end with a screw-thread I.

Fig. 6 is an axial section of that shown in Fig. 4, the filter-cylinder being shown in elevation and elevated. Fig. 7 is an elevation of anothermodification of the body of the apparatus, the lower part being in section and showing a filter-plate. Fig. 8 is an elevation of still another modification of the body of the apparatus, the lower part being in section and showing another form of filter-plate. Fig. 9 is an elevation showing my improved decanting apparatus in connection with a common filtering apparatus. Fig. 10 is an axial section of the lower end of an air-drum and a cylinder provided with a valve. Fig. 11 is anaxial section of the lower end of an air-drum and a cylinder provided with another form of valve. Fig. 12 is an axial section of the lower end of an air-drum, show ing a slime-sack and filter-plate. Fig. 13 is an elevation of another modified form of decantingapparatus, partly in section. Fig. 14 is an elevation of a similar form ona much larger scale, partly in section.

1) represents the inverted-dome-shaped bottom of the decanting apparatus, to which the supporting-stand Ct is connected, and which is formed with the cylindrical extension I),

having a supporting-flange b at its upper edge, on which the glass cylinder e rests, and 0 represents the dome-shaped top, held on the glass cylinder by the rods d.

In Figs. 1 and 2 I have shown one form of supporting-stand a, and when this form of stand is employed the inlet g to the apparatus is centrally located in the bottom I), and when the form of supporting-stand a, Fig. 3, is used the inlet g is placed on one side of the bottom.

it represents the outlets of the apparatus, leading from the cylindrical extension I), and in Fig. 3 I have shown braces 71 for them. frepresents a stop-cock in the inlet, and n repre sents the stop-cock located in each of the outlets h.

Located within the air-drum A, which is formed by the bottom 1), the top 0, and cylinder e, is a hollow cylindrical filter B, of any preferred material, and it is adapted to be raised and lowered or adjusted within the air-drum by means of the rod Z, secured at one endto the filter and provided at its other The rod is packed at its upper end by the stuffing-box Z and guided by a collar Z carried by the bracket m, and it is provided on its screw-threaded end with the hand-wheel m, which as it is turned in either direction raises or lowers the filter. When the filter is to be used, it is lowered to the bottom 17 and pressed against the same, so that the liquor entering the apparatus has to pass through the filter before it passes into the glass cylinder and into the outlets. In order to insure a tight joint at this point, the lower edge of the filter is pro- I vided with a packing-ring k, which bears against a flange 19, formed on the bottom I).

The operation of the device is as follows: The inlet of the decanting apparatus is con nected with the filter O, which is of any desired construction. The liquor which flows from the filter O is pure enough to pass directly through the decanting apparatus into the barrels, vat, or other receptacle provided, and the filter within the decanting apparatus is raised to the position shown in Fig. 6. When the device is stopped temporarily, which is done by turning the cooks in the outlets to their closed position, there is a reaction of the liquor or liquid, which is partly taken up by the air-drum and which loosens the foreign matter taken up by the filter, so that when the device is put in operation again this foreign matter flows with the liquor or liquid through the decanting apparatus. To obviate this, the filter in the decanting apparatus is lowered to the position shown in Fig. 5, so that the liquor or liquid has to pass through it, so that the foreign matter will be retained, and in this manner the quality of the liquor or liquid is not impaired. WVhen the liquor has become sufficiently strained, the filter in the decanting apparatus is raised and the liquor or liquid allowed to flow through the apparatus without passing through the filter B.

To provide against the foreign matter caught by the filter B mixing with the liquor or liquid entering the apparatus after the filter is raised, the means shown in Figs. 10 and 11 may be employed. In Fig. 10 a checkvalve D may be carried by the lower end of the filter, and when the filter is lowered the valve will be raised by coming in contact with the bottom Z7 and thus allow the liquor or liquid to pass into the filter. When the filter is raised, the flanged end of the valve will drop to the bottom of the filter and thus prevent any of the foreign matter dropping out, yet permitting any liquid to flow into the filter. The arrangement shown in Fig. 11 consists of a tube F, closed at its upper end and screw-threaded at its lower end, so that it can be held in position in the inletopening. The upper end of the tube is provided with a series of openings H, which permit of the liquid passing out of the tube into the cylinder A or the filter B. When the filter is in its lower position, the openings will be within the filter, so that the liquor or liquid will flow into the filter; but when it is raised the liquor or liquid will flow into the glass cylinder and the foreign matter caught by the filter B will be prevented from mixing with the liquor by the closed top E of the tube.

In Figs. 7 and 8 I have shown a disk filter g instead of ahollow cylindrical one. In Fig. 7 the disk is placed above the bottom Z2, while in'Fig. 8 it is placed in the bottom, the bottom being formed in two parts, as shown, to accommodate this arrangement. In each case the operation is the same and the same means is employed as hereinbefore described to raise and lower the disk filter.

In Fig. 12 I have shown the bottom of the filter formed with an extension I), having a chamber K to provide for the retention of the foreign matter caught by the disk filter when the form shown in Fig. 8 is employed. In this form also the inlet and outlet pipes are preferably placed in the position shown.

A modified form of the glass cylinder is shown in Figs. 4, 5, 6, and 7. The modification consists in forming the cylinder of two parts 4 and s and interposing a ring between the adjacent edges of the two cylinders with which the two outlets are connected.

If desired, the decanting apparatus may be connected directly to the receptacle containing the liquor or liquid to be filtered, in which case the filter in the apparatus would be 0011- stantly in use. The plate-like filter 1 may also be firmly arranged as shown in Figs. 13 and 14 but in this case the air-drum A must be provided with a feeding-pipe R, connected with the feeding-pipe g by means of a threeway cock S, so that the liquor or liquid to be filtered may be sent into the air-drum either directly or after having passed the filter y.

The extensions on the air-drum provide chambers wherein the filter may be arranged so that the liquor or liquid may be caused to pass either through the extensions and filter to the outlet or through the air-drum to the outlet without passing through the filter.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. A decanting apparatus comprising an air-drum having an extension and an inlet and outlet for the liquor or liquid, a filter in connection with the air-drum and its extension, and means for causing the liquor or liquid to pass either through the extension and filter to the outlet or through the airdrum to the outlet without passing through the filter; the extension providing a chamber whereby such operation can be accomplished substantially as described.

2. In combination with a filter for liquors or liquids, a decanting apparatus connected therewith adapted to have the liquor or liquid pass therethrough, said apparatus consisting of a suitable drum, having inlet and outlet openings, and a filter adjustably located therein: substantially as described.

3. In a decanting apparatus, the combination of the drum having suitable inlet and Outlet openings, a filter located in said drum, and means in connection with said filter for raising and also lowering it so as to have the liquor or liquid entering the apparatus pass through it; substantially as described.

4. In a decanting apparatus, the combination of a suitable drum having inlet and outlet openings, a hollow filter located within said drum and having its lower end open, means in connection with said filter for raising it and also lowering it over the inletopening so as to have the liquor or liquid entering the apparatus pass through it and a valve adapted to control the open lower end of the filter; substantially as described.

5. In a decanting apparatus, the combination of a drum having inlet and outlet openings, a hollow filter located therein having its lower end open, means in connection with said filter of raising and lowering it over the inlet-openings, and a valve for controlling the open end of said filter, said valve being adapted to open when the filter is lowered and to close when it is raised; substantially as described.

6. In a decanting apparatus, the combination of a drum having inlet and outlet openings, a hollow filter located within said-drum, means in connection with said filter for raising it and also lowering it over the inlet-opening of the drum and a packing-ring provided on the lower end of said filter adapted to bear against the bottom of the filter around the inlet-opening when the filter is lowered; substantially as described.

7. In a decanting apparatus, the combination of the drum. and the movable filter loeated therein, said drum being composed of the bottom having an inlet-opening, the top, and an intermediate portion formed of two parts, and a ring provided with the outletopenings interposed between the two parts of the intermediate portion; substantiallyas described.

8. The combination of a receptacle containing a liquor or liquid to be drawn from the receptacle, and a decanting apparatus, said decanting apparatus being composed of a drum having inlet and outlet openings and a filter adapted to be moved into and out of the passage of the liquor or liquid through GUSTAV KATZENSTEIN.

In presence of WALDEMAR HAUPT, HENRY HASPER. 

